Hi guys, im just getting the hang of modding GTA IV on patch 1.0.2 and im about to get into making machinima for the game using the video editor. I have a problem though, whenever I click on WEB, 720p or 1080p it just takes me to a black screen with ENTER - OK at the bottom. Whats going wrong here? Ive noticed others have been having this problem too but with no replies so it would be great if someone could help us all out.

my specs are in my sig just incase this problem has anything to do with Windows 7 or anything.